Iron in Cyanobacteria

Chana Kranzler; Mareike Rudolf; Nir Keren; Enrico Schleiff

doi:10.1016/B978-0-12-394313-2.00003-2

Iron in Cyanobacteria

Chana Kranzler, Mareike Rudolf, Nir Keren^*, Enrico Schleiff

^*Corresponding author for this work

Department of Plant and Environmental Sciences (Natural Sciences)

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

68 Scopus citations

Abstract

Approximately 40% of global photosynthesis is conducted by phytoplankton in aquatic environments. Cyanobacteria, Gram-negative photoautotrophic prokaryotes, contribute. significantly to this fraction and require large amounts of the essential micronutrient iron in order to maintain their Fe-rich photosynthetic apparatus. Cyanobacterial iron requirements exceed non-photosynthetic prokaryotes by ∼10-fold and are exceptionally high even among other photosynthetic organisms. The genomes of cyanobacterial species code for a multitude of iron transporters, iron storage complexes and iron-responsive elements involved in maintaining homeostasis in a highly variable environment. In this chapter, we will review iron transport strategies, the maintenance of intracellular homeostasis and iron limitation responses of cyanobacteria while taking into account the chemistry and environmental bioavailability of iron species.

Original language	English
Title of host publication	Advances in Botanical Research
Publisher	Academic Press Inc.
Pages	57-105
Number of pages	49
DOIs	https://doi.org/10.1016/B978-0-12-394313-2.00003-2
State	Published - 2013

Publication series

Name	Advances in Botanical Research
Volume	65
ISSN (Print)	0065-2296

Bibliographical note

Funding Information:
We thank Oliver Mirus for help during figure preparation. Financial support from the Deutsche Forschungsgemeinschaft (DFG) to E.S. and from the Israeli Science Foundation (grant no. 806/11 ) to N.K. is acknowledged.

Keywords

Homeostasis
Iron
Iron-dependant transcriptional regulation
Membrane transport
Oxidative stress
Photosynthesis
Siderophores

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10.1016/B978-0-12-394313-2.00003-2

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abstract = "Approximately 40% of global photosynthesis is conducted by phytoplankton in aquatic environments. Cyanobacteria, Gram-negative photoautotrophic prokaryotes, contribute. significantly to this fraction and require large amounts of the essential micronutrient iron in order to maintain their Fe-rich photosynthetic apparatus. Cyanobacterial iron requirements exceed non-photosynthetic prokaryotes by ∼10-fold and are exceptionally high even among other photosynthetic organisms. The genomes of cyanobacterial species code for a multitude of iron transporters, iron storage complexes and iron-responsive elements involved in maintaining homeostasis in a highly variable environment. In this chapter, we will review iron transport strategies, the maintenance of intracellular homeostasis and iron limitation responses of cyanobacteria while taking into account the chemistry and environmental bioavailability of iron species.",

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author = "Chana Kranzler and Mareike Rudolf and Nir Keren and Enrico Schleiff",

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AU - Rudolf, Mareike

AU - Keren, Nir

AU - Schleiff, Enrico

N1 - Funding Information: We thank Oliver Mirus for help during figure preparation. Financial support from the Deutsche Forschungsgemeinschaft (DFG) to E.S. and from the Israeli Science Foundation (grant no. 806/11 ) to N.K. is acknowledged.

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N2 - Approximately 40% of global photosynthesis is conducted by phytoplankton in aquatic environments. Cyanobacteria, Gram-negative photoautotrophic prokaryotes, contribute. significantly to this fraction and require large amounts of the essential micronutrient iron in order to maintain their Fe-rich photosynthetic apparatus. Cyanobacterial iron requirements exceed non-photosynthetic prokaryotes by ∼10-fold and are exceptionally high even among other photosynthetic organisms. The genomes of cyanobacterial species code for a multitude of iron transporters, iron storage complexes and iron-responsive elements involved in maintaining homeostasis in a highly variable environment. In this chapter, we will review iron transport strategies, the maintenance of intracellular homeostasis and iron limitation responses of cyanobacteria while taking into account the chemistry and environmental bioavailability of iron species.

AB - Approximately 40% of global photosynthesis is conducted by phytoplankton in aquatic environments. Cyanobacteria, Gram-negative photoautotrophic prokaryotes, contribute. significantly to this fraction and require large amounts of the essential micronutrient iron in order to maintain their Fe-rich photosynthetic apparatus. Cyanobacterial iron requirements exceed non-photosynthetic prokaryotes by ∼10-fold and are exceptionally high even among other photosynthetic organisms. The genomes of cyanobacterial species code for a multitude of iron transporters, iron storage complexes and iron-responsive elements involved in maintaining homeostasis in a highly variable environment. In this chapter, we will review iron transport strategies, the maintenance of intracellular homeostasis and iron limitation responses of cyanobacteria while taking into account the chemistry and environmental bioavailability of iron species.

KW - Homeostasis

KW - Iron

KW - Iron-dependant transcriptional regulation

KW - Membrane transport

KW - Oxidative stress

KW - Photosynthesis

KW - Siderophores

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Iron in Cyanobacteria

Abstract

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Keywords

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